CN112151960A - Foldable mobile terminal and antenna control method - Google Patents

Foldable mobile terminal and antenna control method Download PDF

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Publication number
CN112151960A
CN112151960A CN201910579187.8A CN201910579187A CN112151960A CN 112151960 A CN112151960 A CN 112151960A CN 201910579187 A CN201910579187 A CN 201910579187A CN 112151960 A CN112151960 A CN 112151960A
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CN
China
Prior art keywords
antenna
frequency range
mobile terminal
frequency
switch
Prior art date
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Pending
Application number
CN201910579187.8A
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Chinese (zh)
Inventor
应李俊
王岩
余冬
尤佳庆
王汉阳
刘华涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201910579187.8A priority Critical patent/CN112151960A/en
Priority to PCT/CN2020/098395 priority patent/WO2020259663A1/en
Publication of CN112151960A publication Critical patent/CN112151960A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The application provides a foldable mobile terminal and an antenna control method. The method comprises the following steps: when the mobile terminal is in the unfolding state, the first antenna works in a first frequency range, the second antenna works in a second frequency range, and the first frequency range and the second frequency range have the same frequency or different frequencies. Therefore, normal communication of the mobile terminal in the unfolding state is realized. When the mobile terminal is changed from the unfolded state to the folded state, the first antenna works in the first frequency range, the first antenna at least works in the third frequency range, and the third frequency range is adjacent to and incompletely overlapped with the first frequency range, so that the second antenna becomes an adjustable parasitic branch of the first antenna, normal communication of the mobile terminal in the folded state is completed, and the communication performance of the mobile terminal is effectively improved.

Description

Foldable mobile terminal and antenna control method
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a foldable mobile terminal and an antenna control method.
Background
Generally, a mobile terminal needs to accommodate one or more antennas of various types in a limited space, such as a multiple-input multiple-output (MIMO) antenna, a Global Positioning System (GPS) antenna, a wIreless fidelity (WIFI) antenna, a bluetooth antenna, a Long Term Evolution (LTE) antenna, and the like. With the increasing use demand of data services, the use scenes of mobile terminals will increase continuously, and the use performance requirements of antennas will also increase accordingly.
At present, the folding state of the foldable mobile terminal includes various states. However, when the mobile terminal is unfolded or folded, the distance between the antennas is inevitably short, which easily causes signal interference, and the performance of the antennas is reduced, so that it is difficult to maintain the normal operation of the mobile terminal.
Disclosure of Invention
The application provides a foldable mobile terminal and an antenna control method, which are used for solving the problem of signal interference caused by unfolding or folding of the mobile terminal, improving the service performance of an antenna, ensuring that the mobile terminal can normally work and improving the communication performance of the mobile terminal.
In a first aspect, the present application provides a foldable mobile terminal, comprising: the first antenna and the second antenna are arranged on two sides of the rotating axis. The first antenna includes: the first antenna radiator receives an electric signal input by the first feed source through the first feed point. The second antenna includes: the second antenna radiator receives an electric signal input by the second feed source through the second feed point, and the second antenna radiator, the second feed point and the second antenna regulating circuit are used for providing a plurality of working frequency ranges. When the mobile terminal is in the unfolding state, the first antenna works in a first frequency range, the second antenna works in a second frequency range, the first frequency range and the second frequency range have the same frequency, and the first frequency range is a frequency range meeting the communication requirement of the mobile terminal. When the mobile terminal is changed from the unfolded state to the folded state, the first antenna works in a first frequency range. According to the first frequency range, the second antenna is switched to a third frequency range from the second frequency range to work through the second antenna adjusting circuit, and the third frequency range is adjacent to and not completely overlapped with the first frequency range.
With the foldable mobile terminal provided by the first aspect, when the mobile terminal is in the unfolded state, the first antenna can be set to operate in the first frequency range, the second antenna can operate in the second frequency range, and the first frequency range and the second frequency range have the same frequency. Because the distance between the first antenna and the second antenna is far, signals between the first antenna and the second antenna cannot interfere with each other, so that the first antenna and the second antenna can respectively complete corresponding functions, and normal communication of the mobile terminal in a unfolding state is realized. When the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna and the second antenna is shortened, the first antenna can be set to work in a first frequency range, the second antenna can be set to switch from a second frequency range to a third frequency range to work through a second antenna adjusting circuit in the second antenna according to the first frequency range, and the third frequency range is adjacent to and not completely overlapped with the first frequency range. And because the second antenna radiator, the second feed point and the second antenna adjusting circuit in the second antenna can provide a plurality of working frequency ranges for the second antenna, the second antenna becomes an adjustable parasitic branch of the first antenna, the signal interference of the second antenna on the first antenna is avoided, and the signal strength of the first antenna is enhanced to make up the influence caused when the mobile terminal is in a folded state, so that the first antenna can meet various communication requirements, thereby completing the normal communication of the mobile terminal in the folded state, and effectively improving the communication performance of the mobile terminal.
In one possible design, the third frequency range is adjacent to and does not overlap the first frequency range, or the third frequency range partially overlaps the first frequency range.
Optionally, the third frequency range and the first frequency range may be completely non-overlapping and adjacent, such as 890-900 MHz, and 910-930 MHz. Here, adjacent is to be understood as: the difference between the maximum frequency value of one of the first frequency range and the third frequency range and the minimum frequency value of the other frequency range is less than or equal to a preset value, wherein the preset value can be set according to actual conditions.
Alternatively, the third frequency range and the first frequency range may also partially overlap, for example, the first frequency range is 890-909 MHZ, the third frequency range is 885-891 MHZ, and the frequency range where the first frequency range and the third frequency range partially overlap is 890-891 MHZ.
In one possible design, the second antenna adjustment circuit includes: the antenna comprises a plurality of branches, wherein each branch is provided with a second antenna switch and a second matching circuit which are electrically connected, and the second antenna radiator and any one branch are used for providing a working frequency range to adjust a third frequency range. The second antenna radiator is electrically connected with the second antenna switch, the second matching circuit and the second feed source in sequence through the second feed point. And/or the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second feed source in sequence through the second feed point.
The present application does not limit the specific structures of the second antenna switch and the second matching circuit. For example, the second antenna switch may be a switch or a plurality of switches. Any one of the switches may be a single-pole multi-throw switch with one input and multiple outputs, or may be a multi-pole multi-throw switch with multiple inputs and multiple outputs, which is not limited in the present application. Any one switch may be connected by one or more switches connected in series and/or in parallel, which is not limited in this application. The second matching circuit may be a capacitor, an inductor, or a plurality of capacitors connected in series, or a plurality of inductors connected in series, or a plurality of capacitors connected in parallel, or a plurality of inductors connected in parallel, or at least one capacitor and at least one inductor connected in series, or at least one group of capacitors and inductors connected in series and connected in parallel, which is not limited in this application.
In one possible design, the second antenna radiator is electrically connected to the second antenna switch, the second matching circuit and the second ground point in sequence via the second contact point. And/or the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second grounding point in sequence through the second contact point.
In one possible design, when the mobile terminal is changed from the unfolded state to the folded state, the second antenna is switched from the second frequency range to the third frequency range to work by disconnecting the second antenna switch in the branch where the second antenna radiator is electrically connected with the second feed source according to the first frequency range.
Through the foldable mobile terminal provided by the embodiment, when the mobile terminal is changed from the unfolded state to the folded state, the mobile terminal can disconnect the connection between the second antenna radiator and the second feed source by disconnecting the second antenna switch in the branch where the second antenna radiator is electrically connected with the second feed source, and according to the first frequency range, the second antenna is set to switch from the second frequency range to the third frequency range to work, so that the second antenna becomes a parasitic branch of the first antenna, and the second antenna is prevented from interfering with the signal of the first antenna and the signal intensity of the first antenna is enhanced.
In one possible design, when the mobile terminal is changed from the unfolded state to the folded state, the second antenna is switched from the second frequency range to the third frequency range to operate by opening the second antenna switch in the branch where the second antenna radiator is electrically connected to the second feed source and closing the second antenna switch electrically connected to the second matching circuit providing the third frequency range according to the first frequency range.
Through the foldable mobile terminal provided by the embodiment, when the mobile terminal is changed from the unfolded state to the folded state, the mobile terminal can disconnect the connection between the second antenna radiator and the second feed source, and can also disconnect the second antenna switch electrically connected with the second matching circuit providing the third frequency range by closing the second antenna switch and disconnecting the remaining second antenna switches in the second antenna adjusting circuit, so that the second antenna is set to switch from the second frequency range to the third frequency range to work according to the first frequency range, the second antenna becomes a parasitic branch of the first antenna, and the second antenna is prevented from interfering with the signal of the first antenna and the signal intensity of the first antenna is enhanced.
In one possible design, the mobile terminal further includes: radio frequency circuit and change-over switch. The first end of the change-over switch is connected with the radio frequency circuit, and the second end of the change-over switch is connected with the second feed source.
In one possible design, when the mobile terminal is changed from the unfolded state to the folded state, the switch is turned off to disconnect the second feed source from the radio frequency circuit according to the first frequency range, and the second antenna is switched from the second frequency range to the third frequency range to work.
By the foldable mobile terminal provided by the embodiment, when the mobile terminal is changed from the unfolded state to the folded state, the mobile terminal can disconnect the connection between the second antenna adjusting circuit and the radio frequency circuit by disconnecting the switch, and the second antenna is set to be switched from the second frequency range to the third frequency range to work according to the first frequency range, so that the second antenna becomes a parasitic stub of the first antenna, thereby preventing the second antenna from interfering with the signal of the first antenna and enhancing the signal intensity of the first antenna.
In order to meet the communication requirements of the mobile terminal and facilitate the design, the first antenna may have the same structure as the second antenna.
In one possible design, the first antenna further includes: a first antenna adjustment circuit. The first antenna adjustment circuit includes: the antenna comprises a plurality of branches, wherein each branch is provided with a first antenna switch and a first matching circuit which are electrically connected, and a first antenna radiator and any one branch are used for providing a working frequency range to adjust the first frequency range. The first antenna radiator is electrically connected with the first antenna adjusting circuit and the first feed source in sequence through the first feed point.
Generally, the communication requirement of the mobile terminal is related to parameters such as the current position of the mobile terminal, the signal coverage strength, and the like. The first frequency range may include a plurality of frequency ranges, as the first frequency range satisfies communication requirements of the mobile terminal.
In one possible design, the first frequency range includes any one of the following frequency ranges: 600-2960 MHz low frequency band, 1710-22200 MHz medium frequency band and 2300-22700 MHz high frequency band.
In one possible design, the mobile terminal further includes: a first control module. The first control module is respectively connected with the first antenna and the second antenna. The first control module is used for controlling the first antenna to work in a first frequency range and the second antenna to work in a second frequency range when the mobile terminal is in the unfolding state. The first control module is further configured to control the first antenna to operate in a first frequency range when the mobile terminal is changed from the unfolded state to the folded state. And controlling the second antenna to switch from the second frequency range to the third frequency range to work through the second antenna adjusting circuit according to the first frequency range.
In a second aspect, the present application provides a foldable mobile terminal, comprising: the first antenna and the second antenna are arranged on two sides of the rotating axis. The first antenna includes: the first antenna radiator receives an electric signal input by the first feed source through the first feed point. The second antenna includes: the second antenna radiator receives an electric signal input by the second feed source through the second feed point and the second filter circuit, the second filter circuit presents a high impedance characteristic in a first frequency range and a third frequency range and presents a low impedance characteristic in the second frequency range, the first frequency range is a frequency range meeting the communication requirement of the mobile terminal, and the third frequency range is adjacent to and incompletely overlapped with the first frequency range. The second antenna radiator is electrically connected with the second grounding point through the second contact point and the second antenna adjusting circuit, and the second antenna adjusting circuit presents high impedance characteristic in the first frequency range, low impedance characteristic in the second frequency range, high impedance characteristic in the third frequency range and frequency adjusting function with different degrees on the third frequency range. When the mobile terminal is in the unfolding state, the first antenna works in a first frequency range, the second antenna works in a second frequency range, and the first frequency range and the second frequency range are different in frequency. When the mobile terminal is changed from the unfolded state to the folded state, the first antenna works in a first frequency range. And according to the first frequency range, the second antenna works in a second frequency range and a third frequency range through the second filter circuit and the second antenna adjusting circuit.
By the foldable mobile terminal provided by the second aspect, when the mobile terminal is in the unfolded state, the first antenna can be set to operate in the first frequency range, the second antenna can operate in the second frequency range, and the first frequency range and the second frequency range are different in frequency. Because the distance between the first antenna and the second antenna is far, signals between the first antenna and the second antenna cannot interfere with each other, so that the first antenna and the second antenna can respectively complete corresponding functions, and normal communication of the mobile terminal in a unfolding state is realized. When the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna and the second antenna is shortened, the first antenna can be set to work in a first frequency range, and according to the first frequency range, the second antenna can be set to continue to work in a second frequency range and a third frequency range through the second filter circuit and the second antenna adjusting circuit in the second antenna, and the third frequency range is adjacent to and not completely overlapped with the first frequency range. And because the second antenna radiator is electrically connected with the second grounding point through the second contact point and the second antenna adjusting circuit, the third frequency range can be adjusted to different degrees, so that the second antenna can also become an adjustable parasitic branch of the first antenna while completing the corresponding function of the second antenna, the signal strength of the first antenna is enhanced on the basis that the first antenna can meet various communication requirements, the influence caused when the mobile terminal is in a folded state is compensated, the normal communication of the mobile terminal in the folded state is completed, and the communication performance of the mobile terminal is effectively improved.
In one possible design, the third frequency range is adjacent to and does not overlap the first frequency range, or the third frequency range partially overlaps the first frequency range.
Optionally, the third frequency range and the first frequency range may be completely non-overlapping and adjacent, such as 890-900 MHz, and 910-930 MHz. Here, adjacent is to be understood as: the difference between the maximum frequency value of one of the first frequency range and the third frequency range and the minimum frequency value of the other frequency range is less than or equal to a preset value, wherein the preset value can be set according to actual conditions.
Alternatively, the third frequency range and the first frequency range may also partially overlap, for example, the first frequency range is 890-909 MHZ, the third frequency range is 885-891 MHZ, and the frequency range where the first frequency range and the third frequency range partially overlap is 890-891 MHZ.
In one possible design, the second antenna adjustment circuit includes: and each first branch is provided with a second antenna switch and a second matching circuit which are electrically connected, and the second antenna radiator and the second matching circuit of any one first branch present different impedances so as to adjust a third frequency range. The second antenna radiator is electrically connected with the second antenna switch, the second matching circuit and the second grounding point in sequence through the second contact point. And/or the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second grounding point in sequence through the second contact point.
Through the foldable mobile terminal provided by this embodiment, the second antenna radiator may be electrically connected to the second antenna adjustment circuit and the second ground point in sequence through the second contact point, that is, the impedance of one branch existing in the second antenna is 0 ohm, so that the second antenna may operate in the second frequency range when the mobile terminal is in the deployed state, and due to the existence of the second filter circuit, the second antenna may conduct a signal in the second frequency range when the mobile terminal is in the deployed state.
In one possible design, when the mobile terminal is changed from the unfolded state to the folded state when the second antenna operates in the second frequency range when the mobile terminal is in the unfolded state, the second antenna operates in the second frequency range and the third frequency range by closing a second antenna switch electrically connected to a second matching circuit providing the third frequency range according to the first frequency range.
By the foldable mobile terminal provided by the embodiment, when the mobile terminal is in the unfolded state and if the second antenna works in the second frequency range, and the mobile terminal is changed from the unfolded state to the folded state, the remaining second antenna switches in the second antenna adjusting circuit can be disconnected by closing the second antenna switch electrically connected with the second matching circuit providing the third frequency range, and the second antenna is set to work in the second frequency range and the third frequency range according to the first frequency range, so that the second antenna can also become a parasitic branch of the first antenna while working normally, so as to enhance the signal intensity of the first antenna.
In one possible design, the second antenna adjustment circuit further includes: and each second branch is provided with a second matching circuit, and the second antenna radiator and the second matching circuit of any one second branch have different impedances so as to adjust a third frequency range. And the second antenna radiator is sequentially electrically connected with the second matching circuit and the second grounding point through the second contact point.
Through the foldable mobile terminal provided by the embodiment, the second antenna radiator can be sequentially and electrically connected with the second antenna adjusting circuit and the second grounding point through the second contact point, and also can be sequentially and electrically connected with the second matching circuit and the second grounding point through the second contact point, that is, the second antenna does not have impedance of 0 ohm on one branch, so that the second antenna can work in the second frequency range and the fourth frequency range when the mobile terminal is in the unfolded state, and due to the existence of the second filter circuit, the second antenna can conduct signals in the second frequency range and block signals in the fourth frequency range when the mobile terminal is in the unfolded state.
In one possible design, when the second antenna operates in the second frequency range and the fourth frequency range when the mobile terminal is in the extended state, and the mobile terminal is changed from the extended state to the folded state, the second antenna switch electrically connected to the second matching circuit providing the third frequency range is closed according to the first frequency range and the fourth frequency range to adjust the fourth frequency range to the third frequency range, and the second antenna operates in the second frequency range and the third frequency range.
With the foldable mobile terminal provided by this embodiment, when the mobile terminal is in the unfolded state, if the second antenna operates in the second frequency range and the fourth frequency range, and the mobile terminal is changed from the unfolded state to the folded state, the remaining second antenna switches in the second antenna adjusting circuit may be turned off by closing the second antenna switch electrically connected to the second matching circuit providing the third frequency range, and the fourth frequency range to the third frequency range may be adjusted according to the first frequency range, so as to set the second antenna to operate in the second frequency range and the third frequency range, so that the second antenna may also become a parasitic branch of the first antenna while operating normally, so as to enhance the signal intensity of the first antenna.
In general, when the first frequency range is greater than the fourth frequency range, the mobile terminal may adjust the second matching circuit in the second antenna adjusting circuit to exhibit the inductance. When the first frequency range is smaller than the fourth frequency range, the mobile terminal can adjust a second matching circuit in the second antenna adjusting circuit to be capacitive.
In one possible design, the first antenna further includes: a first antenna adjustment circuit. The first antenna adjustment circuit includes: the antenna comprises a plurality of branches, wherein each branch is provided with a first antenna switch and a first matching circuit which are electrically connected, and a first antenna radiator and any one branch are used for providing a working frequency range to adjust the first frequency range. The first antenna radiator is electrically connected with the first antenna adjusting circuit and the first feed source in sequence through the first feed point.
In one possible design, the first frequency range includes any one of the following frequency ranges: 600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
In one possible design, the mobile terminal further includes: and a second control module. The second control module is respectively connected with the first antenna and the second antenna. And the second control module is used for controlling the first antenna to work in a first frequency range and controlling the second antenna to work in a second frequency range when the mobile terminal is in the unfolding state. The second control module is further used for controlling the first antenna to work in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state. And controlling the second antenna to work in a second frequency range and a third frequency range through the second filter circuit and the second antenna adjusting circuit according to the first frequency range.
In a third aspect, the present application provides an antenna control method applied to a foldable mobile terminal, where the mobile terminal includes: the first antenna and the second antenna are arranged on two sides of the rotating axis. The method comprises the following steps: and acquiring the opening and closing state of the mobile terminal. When the mobile terminal is in the unfolding state, the first antenna is controlled to work in a first frequency range, the first frequency range is a frequency range meeting the communication requirement of the mobile terminal, the second antenna is controlled to work in a second frequency range, and the first frequency range and the second frequency range have the same frequency, or the first frequency range and the second frequency range have different frequencies. When the mobile terminal is in a folded state and the frequency ranges of the first antenna and the second antenna in operation are determined to be the same frequency when the mobile terminal is in an unfolded state, the first antenna is controlled to operate in the first frequency range. And controlling the second antenna to switch from the second frequency range to a third frequency range to work through a second antenna adjusting circuit according to the first frequency range, wherein the third frequency range is adjacent to and not completely overlapped with the first frequency range. And when the mobile terminal is in a folded state and the working frequency ranges of the first antenna and the second antenna are different when the mobile terminal is determined to be in an unfolded state, controlling the first antenna to work in the first frequency range. And controlling the second antenna to work in a second frequency range and a third frequency range by the second antenna adjusting circuit according to the first frequency range, wherein the third frequency range is adjacent to and not completely overlapped with the first frequency range.
In one possible design, the third frequency range is adjacent to and does not overlap the first frequency range, or the third frequency range partially overlaps the first frequency range.
In one possible design, the first frequency range includes any one of the following frequency ranges: 600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
In one possible design, acquiring the open/close state of the mobile terminal includes: and acquiring the opening and closing angle of the rotating shaft. Alternatively, the distance between two housings of the mobile terminal is acquired.
The beneficial effects of the antenna control method provided in the third aspect and each possible design of the third aspect may refer to the beneficial effects brought by each possible implementation manner of the first aspect and each possible implementation manner of the second aspect and the second aspect, and are not described again here.
Drawings
Fig. 1a is a schematic diagram of the same frequency of the working frequency ranges of two antennas according to an embodiment of the present application;
fig. 1b is a schematic diagram of the same frequency of the working frequency ranges of two antennas according to an embodiment of the present application;
fig. 1c is a schematic diagram of the same frequency of the working frequency ranges of two antennas according to an embodiment of the present application;
fig. 1d is a schematic diagram of the same frequency of the working frequency ranges of two antennas according to an embodiment of the present application;
fig. 1e is a schematic diagram of different frequencies in the working frequency ranges of two antennas according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a foldable mobile terminal in an unfolded state according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a foldable mobile terminal in a folded state according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a foldable mobile terminal in an unfolded state according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a foldable mobile terminal in a folded state according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a foldable mobile terminal in an unfolded state according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a foldable mobile terminal in a folded state according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a foldable mobile terminal in an unfolded state according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a foldable mobile terminal in a folded state according to an embodiment of the present application;
fig. 10 is a schematic diagram of a connection of a second antenna according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a foldable mobile terminal in a unfolded state according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of a foldable mobile terminal in a folded state according to an embodiment of the present application;
fig. 13 is a schematic diagram of a connection of a second antenna according to an embodiment of the present application;
fig. 14 is a schematic connection diagram of a second antenna according to an embodiment of the present application;
fig. 15 is a graph illustrating the reflection coefficient S11 of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 16 is a graph illustrating the radiation efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 17 is a graph illustrating system efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 18 is a graph illustrating the reflection coefficient S11 of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 19 is a graph illustrating the radiation efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 20 is a graph illustrating system efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 21 is a graph illustrating the reflection coefficient S11 of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 22 is a graph illustrating the radiation efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 23 is a graph illustrating system efficiency of the second antenna when not becoming a parasitic branch of the first antenna and when becoming a parasitic branch of the first antenna in the foldable mobile terminal in the folded state according to an embodiment of the present application;
fig. 24 is a flowchart illustrating an antenna control method according to an embodiment of the present application;
fig. 25 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present application.
Description of reference numerals:
10-a first antenna; 20 — a second antenna;
11-a first antenna radiator; 12 — a first feeding point; 13-a first filter circuit; 14-a first antenna adjustment circuit; 15 — first contact point;
21-a second antenna radiator; 22 — a second feeding point; 23-a second filter circuit; 24-a second antenna adjustment circuit; 25 — second contact point;
241-a second antenna switch; 242 — a second matching circuit;
141-first antenna switch; 142-a first matching circuit;
31-radio frequency circuit; 32-a diverter switch; 41-a first control module; 42 — a second control module;
a-axis of rotation; b1 — first feed; b2 — second feed.
Detailed Description
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
The application provides a folding mobile terminal, when mobile terminal changed from the expansion attitude into folding attitude, through the operating frequency range of the antenna of adjustment setting in pivot axis both sides for an antenna becomes the adjustable parasitic minor matters of another antenna, has not only avoided the signal interference between an antenna and another antenna, has still strengthened the signal strength of another antenna, has improved mobile terminal's communication performance.
The mobile terminal can be folded along the rotating axis, and the specific folding mode can be left-right folding, up-down folding, diagonal folding or any other angle folding mode, which is not limited in the application. The mobile terminal mentioned in the present application may include but is not limited to: a terminal such as a smart phone, a tablet computer, a portable computer, a router, an Optical Network Terminal (ONT), and a wireless Access Point (AP).
In this application, since the layout of the antennas in the mobile terminal is set, one or more antennas included on one side of the rotation axis may be used as the one antenna, and one or more antennas included on the other side of the rotation axis may be used as the another antenna.
The mobile terminal comprises a rotating shaft, a mobile terminal and a power supply, wherein the rotating shaft is arranged on the mobile terminal, the power supply is connected with the rotating shaft, the power supply is connected with the power supply, and the power supply is connected with the rotating shaft. For example, an antenna may be located on the left side, right side, top side, bottom side, etc. of a mobile terminal. Another antenna may also be located on the left side, right side, top side, bottom side, etc. of the mobile terminal.
In addition, the application does not limit the specific types of the two antennas. For example, the two-antenna type may include one or more of a MIMO antenna, a bluetooth antenna, a WIFI antenna, an LTE antenna, and the like. And the two antennas can be of the same type or different types.
In the application, the two antennas can work in any one or more frequency ranges according to actual requirements, and the frequency ranges in which the two antennas work can be the same frequency or different frequencies, which is not limited in the application.
In conjunction with fig. 1a to 1d, the same frequency range in which the two antennas work may include, but is not limited to, the following cases. For convenience of illustration, in fig. 1a to 1d, one antenna operates in a frequency range of (x1, x2), and the other antenna operates in a frequency range of (x3, x 4).
In one possible case, as shown in fig. 1a, the frequency ranges in which the two antennas operate are identical, that is, x1 is x3, and x2 is x4, so that the frequency ranges in which the two antennas operate are the same frequency. For example, both antennas operate in the B7 (2500-2700 MHz) band in LTE.
In another possible case, as shown in fig. 1b, there is a partial overlap between the operating frequency ranges of the two antennas, i.e. x1< x3, x2< x4, and the overlapped portion is (x3, x2), so that the operating frequency ranges of the two antennas are the same frequency. For example, one antenna operates in the B7 (2500-2700 MHz) band in LTE, and the other antenna operates in the WIFI (2400-2500 MHz) band.
In another possible case, as shown in fig. 1c, the frequency range in which one antenna operates is included in the frequency range in which the other antenna operates, i.e. x1< x3< x4< x2, (x3, x4) is included in (x1, x2), and the frequency ranges in which the two antennas operate are the same frequency. For example, one antenna operates in the B7 (2500-2700 MHz) band and the B1 (1920-2170 MHz) band in LTE, and the other antenna operates in the B7 (2500-2700 MHz) band in LTE.
In another possible case, as shown in fig. 1d, there is no overlapping portion between the operating frequency range of one antenna and the operating frequency range of the other antenna, and the operating frequency ranges of the two antennas are separated by a small interval, so that the operating frequency ranges of the two antennas have the same frequency. The small interval here can be expressed in two possible ways as follows.
In a feasible manner, when the maximum frequency of one antenna is smaller than the minimum frequency of the other antenna, the actual separation value between the maximum frequency of one antenna and the minimum frequency of the other antenna can be within the preset separation value, and the frequency ranges of the two antennas are the same frequency.
Wherein, if x2< x3, the actual interval value is the difference between x3 and x2, i.e., x3-x 2. If x4< x1, the actual separation value is the difference between x1 and x4, i.e., x1-x 4. The preset interval value may be set according to an actual situation, which is not limited in this application.
In another possible way, when the maximum frequency of the antenna operation is less than the minimum frequency of the other antenna operation, the actual interval calculated based on the maximum frequency of the antenna operation and the minimum frequency of the other antenna operation may be within the preset interval.
Wherein, if x2< x3, the actual spacing degree is (x3-x2)/x3, or (x3-x2)/x 2. If x4< x1, the actual spacing is (x1-x4)/x1, or (x1-x4)/x 4. The preset interval may be set according to actual conditions, which is not limited in this application. For example, when the preset spacing is 5.3%, one antenna operates in the B40(2300 to 2400MHz) band in LTE, the other antenna operates in the B7(2500 to 2700MHz) band in LTE, and the actual spacing (2500 + 2400)/2500 ═ 4% < 5.3%, the frequency ranges in which the two antennas operate are the same frequency.
The frequency ranges in which the two antennas work are different from each other, which is referred to in the present application, includes other situations except the same frequency ranges in which the two antennas work. For convenience of illustration, a specific implementation of two antennas operating in different frequency ranges is described with reference to fig. 1 e. In fig. 1e, one antenna operates in the frequency range (x1, x2) and the other antenna operates in the frequency range (x3, x 4).
As shown in fig. 1e, there is no overlapping portion between the operating frequency range of one antenna and the operating frequency range of the other antenna, and the operating frequency ranges of two antennas have a larger interval, so the operating frequency ranges of two antennas are different. The large spacing here can be expressed in two possible ways as follows.
In a feasible manner, when the maximum frequency of one antenna is smaller than the minimum frequency of the other antenna, the actual interval value between the maximum frequency of one antenna and the minimum frequency of the other antenna may be outside the preset interval value, and the frequency ranges of the two antennas are different.
Wherein, if x2< x3, the actual interval value is the difference between x3 and x2, i.e., x3-x 2. If x4< x1, the actual separation value is the difference between x1 and x4, i.e., x1-x 4. The preset interval value may be set according to an actual situation, which is not limited in this application.
In another possible way, when the maximum frequency of the operation of one antenna is less than the minimum frequency of the operation of the other antenna, the actual interval calculated based on the maximum frequency of the operation of one antenna and the minimum frequency of the operation of the other antenna may be outside the preset interval.
Wherein, if x2< x3, the actual spacing degree is (x3-x2)/x3, or (x3-x2)/x 2. If x4< x1, the actual separation is (x1-x4)/x1, or (x1-x4)/x 4). The preset interval may be set according to actual conditions, which is not limited in this application. For example, when the preset spacing degree is 5.3%, one antenna operates in the B40(2300 to 2400MHz) band in LTE, the other antenna operates in the B1(1920 to 2170MHz) band in LTE, and the actual spacing degree (2300-2170)/2300-5.6% < 5.3%, the operating frequency ranges of the two antennas are different.
For convenience of description, the mobile terminal takes a mobile phone folded up and down along a rotation axis a-a as an example, and the two antennas of the mobile terminal take a first antenna located at a lower side of the rotation axis a-a and a second antenna located at an upper side of the rotation axis a-a as an example, and the technical solution of the foldable mobile terminal of the present application is described with reference to the embodiments of the present application and the drawings thereof.
Fig. 2, 4, 6 and 8 are schematic structural views illustrating the mobile terminal in a folded state, fig. 3, 5, 7 and 9 are schematic structural views illustrating upper and lower halves of the mobile terminal in a shifted state, and left and right side views in fig. 3, 5, 7 and 9 are overlapped in a shifted state.
It should be noted that both the unfolded state and the folded state of the mobile terminal belong to the open/close state of the mobile terminal. The unfolded state and the folded state may be set according to parameters such as an opening and closing angle of the mobile terminal, and a distance between two screens (e.g., screen a and screen b) on two sides of the rotation axis a-a, which is not limited in the present application.
For example, when the opening and closing angle of the mobile terminal is greater than or equal to a preset angle (e.g., 60 °), the mobile terminal is in an unfolded state; otherwise, the mobile terminal is in a folded state. For another example, when the distance from the screen a to the screen b in the screen a and the screen b on both sides of the rotation axis a-a is greater than or equal to a preset length (e.g., half of the distance from the rotation axis a-a to the outer frame of the screen a), the mobile terminal is in the unfolded state; otherwise, the mobile terminal is in a folded state.
As shown in fig. 2 to 9, the foldable mobile terminal of the present application may include: a first antenna 10 and a second antenna 20 arranged on either side of the rotation axis a-a.
Specific positions of the first antenna 10 and the second antenna 20 may include various positions, and for convenience of description, in fig. 2, the first antenna 10 is located on the left side of the rotation axis a-a of the mobile terminal, and the second antenna 20 is located on the left side of the rotation axis a-a of the mobile terminal. In fig. 4, the first antenna 10 is located to the left of the top side of the axis of rotation a-a of the mobile terminal and the second antenna 20 is located to the left of the axis of rotation a-a of the mobile terminal. In fig. 6, the first antenna 10 is located in the middle of the top side of the axis of rotation a-a of the mobile terminal and the second antenna 20 is located on the left side of the axis of rotation a-a of the mobile terminal. In fig. 8, the first antenna 10 is located at the middle of the top side of the axis of rotation a-a of the mobile terminal and the second antenna 20 is located to the right and right of the bottom side of the axis of rotation a-a of the mobile terminal.
It should be noted that fig. 2-9 only partially illustrate the positions of the first antenna 10 and the second antenna 20, where the first antenna 10 may also be located at the position shown by the first antenna 10 in fig. 2 and 6, and the second antenna 20 may also be located at the position shown by the first antenna 10 in fig. 2 and 8, which is not limited in this application.
Based on the above description, when the mobile terminal is in the expanded state, the frequency ranges of the first antenna 10 and the second antenna 20 may be the same frequency, or may be different from each other, so that in the application, when the mobile terminal is in the expanded state, a scene with the same frequency of the working frequency bands of the first antenna 10 and the second antenna 20 may be set as the first scene, and a scene with the different frequency of the working frequency bands of the first antenna 10 and the second antenna 20 may be set as the second scene.
Next, the working process of the mobile terminal in the extended state and the folded state is described with respect to the first scene and the second scene, respectively.
Scene one:
in the present application, as shown in fig. 2 to 9, the first antenna 10 may include: a first antenna radiator 11 and a first feeding point 12. The first antenna radiator 11 receives an electrical signal input by the first feed B1 through the first feeding point 12, so as to implement normal operation of the first antenna 10. Wherein the present application defines the number and type of the first antenna radiators 11 and the first feeding points 12.
In the present application, as shown in fig. 2 to 9, the second antenna 20 may include: a second antenna radiator 21, a second feed point 22 and a second antenna adjusting circuit 24. The second antenna radiator 21 receives an electrical signal input from the second feed B2 through the second feeding point 22. The second antenna radiator 21, the second feed point 22 and the second antenna adjustment circuit 24 are used to provide a plurality of operating frequency ranges to enable normal operation of the second antenna 20. Wherein the number and type of the second antenna radiators 21, the second feeding points 22 and the second antenna adjusting circuits 24 are defined by the present application.
In addition, in fig. 2 to 9, the second filter circuit 23 is optional and is used for conducting signals in the second frequency range on the second antenna radiator 21.
With reference to fig. 2, fig. 4, fig. 6, and fig. 8, when the mobile terminal is in the extended state, the mobile terminal of the present application may set the first antenna 10 to operate in a first frequency range, the second antenna 20 to operate in a second frequency range, and the first frequency range and the second frequency range have the same frequency, where the first frequency range is a frequency range meeting communication requirements of the mobile terminal, and a specific range of the first frequency range is not limited in the present application.
As shown in fig. 2, 4, 6 and 8, when the mobile terminal is in the extended state, because the distance between the first antenna 10 and the second antenna 20 is large, when the frequency ranges in which the first antenna 10 and the second antenna 20 operate are the same frequency, the signal interference between the first antenna 10 and the second antenna 20 is small or even no signal interference. As shown in fig. 3, 5, 7 and 9, when the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna 10 and the second antenna 20 is reduced, and therefore, signal interference exists between the first antenna 10 and the second antenna 20 in the same frequency range of operation.
In order to solve the above problem, in conjunction with fig. 2-9, the mobile terminal of the present application may configure the first antenna 10 to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state. And, when it is determined that the frequency range in which the first antenna 10 operates is the first frequency range, the mobile terminal may set, according to the first frequency range, the second antenna 20 to switch from the second frequency range to a third frequency range through the second antenna adjusting circuit 24, where the third frequency range is adjacent to and not completely overlapped with the first frequency range.
The third frequency range may be adjacent to and not completely overlapping with the first frequency range according to the position relationship between the first antenna 10 and the second antenna 20.
Optionally, the third frequency range and the first frequency range may be completely non-overlapping and adjacent, such as 890-900 MHz, and 910-930 MHz. Here, adjacent is to be understood as: the difference between the maximum frequency value of one of the first frequency range and the third frequency range and the minimum frequency value of the other frequency range is less than or equal to a preset value, wherein the preset value can be set according to actual conditions.
Alternatively, the third frequency range and the first frequency range may also partially overlap, for example, the first frequency range is 890-909 MHZ, the third frequency range is 885-891 MHZ, and the frequency range where the first frequency range and the third frequency range partially overlap is 890-891 MHZ.
In this application, when the mobile terminal is in the folded state, the first frequency range may change along with the change of the frequency range of the communication requirement of the mobile terminal, so that the first antenna 10 may satisfy various communication requirements. Since the third frequency range is derived from the first frequency range, the third frequency range changes as the first frequency range changes. Since the third frequency range is adjacent to and not completely overlapped with the first frequency range, and the second antenna radiator 21, the second feeding point 22 and the second antenna adjusting circuit 24 in the second antenna 20 can provide a plurality of working frequency ranges to the second antenna 20, the second antenna 20 becomes an adjustable parasitic branch of the first antenna 10, so as to avoid signal interference between the second antenna 20 and the first antenna 10, and simultaneously enhance the signal of the first antenna 10, so as to compensate for the influence caused when the mobile terminal is in a folded state.
The application provides a foldable mobile terminal, when mobile terminal is in the expansion state, can set up first antenna work at first frequency range, and second antenna work at the second frequency range, and first frequency range and second frequency range are co-frequency. Because the distance between the first antenna and the second antenna is far, signals between the first antenna and the second antenna cannot interfere with each other, so that the first antenna and the second antenna can respectively complete corresponding functions, and normal communication of the mobile terminal in a unfolding state is realized. When the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna and the second antenna is shortened, the first antenna can be set to work in a first frequency range, the second antenna can be set to switch from a second frequency range to a third frequency range to work through a second antenna adjusting circuit in the second antenna according to the first frequency range, and the third frequency range is adjacent to and not completely overlapped with the first frequency range. And because the second antenna radiator, the second feed point and the second antenna adjusting circuit in the second antenna can provide a plurality of working frequency ranges for the second antenna, the second antenna becomes an adjustable parasitic branch of the first antenna, the signal interference of the second antenna on the first antenna is avoided, and the signal strength of the first antenna is enhanced to make up the influence caused when the mobile terminal is in a folded state, so that the first antenna can meet various communication requirements, thereby completing the normal communication of the mobile terminal in the folded state, and effectively improving the communication performance of the mobile terminal.
On the basis of the above embodiments, the second antenna adjusting circuit 24 may include various implementations, which are not limited in this application. Alternatively, the second antenna adjusting circuit 24 may include: a plurality of branches, each of which is provided with a second antenna switch 241 and a second matching circuit 242 that are electrically connected, and the second antenna radiator 21 and any one of the branches are used for providing an operating frequency range to adjust a third frequency range.
The specific structures of the second antenna switch 241 and the second matching circuit 242 are not limited in this application. For example, the second antenna switch 241 may be one switch or a plurality of switches. Any one of the switches may be a single-pole multi-throw switch with one input and multiple outputs, or may be a multi-pole multi-throw switch with multiple inputs and multiple outputs, which is not limited in the present application. Any one switch may be connected by one or more switches connected in series and/or in parallel, which is not limited in this application. The second matching circuit 242 may be implemented by using one capacitor, one inductor, or a plurality of capacitors connected in series, or a plurality of inductors connected in series, or a plurality of capacitors connected in parallel, or a plurality of inductors connected in parallel, or at least one capacitor and at least one inductor connected in series, or at least one group of capacitors and inductors connected in series and connected in parallel, which is not limited in this application.
It should be noted that the second matching circuit 242 in each branch can be set to different impedances to provide different operating frequency ranges, or the second matching circuit 242 in each branch can be set to the same impedance to simplify the design.
In this application, the second antenna radiator 21 may be electrically connected to the second antenna adjusting circuit 24 and the second feed B2 in sequence through the second feeding point 22. Since the connection sequence of the second antenna switch 241 and the second matching circuit 242 may include a plurality of types, a specific connection relationship of the second antenna adjusting circuit 24 in this application will be described below with a plurality of possible connection manners.
In one possible connection manner, the second antenna radiator 21 may be electrically connected to the second antenna switch 241, the second matching circuit 242, and the second feed B2 through the second feed point 22 in sequence.
In another possible connection manner, the second antenna radiator 21 may also be electrically connected to the second matching circuit 242, the second antenna switch 241, and the second feed B2 in sequence through the second feed point 22, as shown in fig. 10. For ease of illustration, this type of connection is shown schematically in fig. 10.
In another possible connection, the two connection modes can exist at the same time.
Based on the above description, optionally, with continuing reference to fig. 10, the second antenna 20 may further include: a second contact point 25 and a second grounding point (identified with a grounding symbol in fig. 10). The second antenna radiator 21 may be further electrically connected to the second antenna adjusting circuit 24 and the second ground point in sequence through the second contact point 25.
Since the connection sequence of the second antenna switch 241 and the second matching circuit 242 may include a plurality of types, a specific connection relationship of the second antenna adjusting circuit 24 in this application will be described below with a plurality of possible connection manners.
In one possible connection, the second antenna radiator 21 is electrically connected to the second antenna switch 241, the second matching circuit 242 and the second ground point in sequence through the second contact point 25.
In another possible connection, the second antenna radiator 21 is electrically connected to the second matching circuit 242, the second antenna switch 241 and the second ground point in sequence through the second contact point 25, as shown in fig. 10. For ease of illustration, this type of connection is shown schematically in fig. 10.
In another possible connection, the two connections may exist simultaneously.
In this application, the mobile terminal may use the second antenna adjusting circuit 24 to operate the second antenna 20 in the third frequency range according to the first frequency range. Based on the connection relationship of the second antenna adjusting circuit 24, in the following, for the first scenario, a specific implementation manner of the mobile terminal that the second antenna 20 operates in the third frequency range is exemplarily described by using three possible implementation manners.
In a possible implementation manner, based on the connection relationship of the second antenna adjustment circuit 24 in fig. 10, when the mobile terminal is changed from the unfolded state to the folded state, the mobile terminal may disconnect the connection between the second antenna radiator 21 and the second feed B2 by disconnecting the second antenna switch 241 in the branch where the second antenna radiator 21 and the second feed B2 are electrically connected, and according to the first frequency range, the second antenna is set to switch from the second frequency range to the third frequency range for operating, so that the second antenna 20 becomes a parasitic stub of the first antenna 10, so as to prevent the second antenna 20 from interfering with the signal of the first antenna 10 and enhance the signal strength of the first antenna 10.
In another possible implementation manner, based on the connection relationship of the second antenna adjusting circuit 24 in fig. 10, when the mobile terminal changes from the unfolded state to the folded state, the mobile terminal may, in addition to disconnecting the second antenna radiator 21 from the second feed B2, close the second antenna switch 241 electrically connected to the second matching circuit 242 providing the third frequency range, and open the remaining second antenna switches 241 in the second antenna adjusting circuit 24, so as to set the second antenna 20 to switch from the second frequency range to the third frequency range for working according to the first frequency range, so that the second antenna 20 becomes a parasitic branch of the first antenna 10, so as to prevent the second antenna 20 from interfering with the signal of the first antenna 10 and strengthen the signal strength of the first antenna 10.
It should be noted that, one or more of the second matching circuits 242 providing the third frequency range mentioned above may be provided, and the application is not limited thereto. Correspondingly, the above-mentioned second antenna switches 241 electrically connected to the second matching circuits 242 providing the third frequency range are all the second antenna switches 241 electrically connected to one or more second matching circuits 242.
In another possible implementation manner, no matter what connection relationship the second antenna adjusting circuit 24 adopts, as shown in fig. 11 to 12, the mobile terminal may further include: a radio frequency circuit 31 and a switch 32. A first terminal of the switch 32 is connected to the rf circuit 31, and a second terminal of the switch 32 is connected to the second antenna adjusting circuit 24.
In this application, as shown in fig. 12, when the mobile terminal is changed from the unfolded state to the folded state, the mobile terminal may disconnect the connection between the second antenna adjusting circuit 24 and the radio frequency circuit 31 by disconnecting the switch 32, and set the second antenna 20 to switch from the second frequency range to the third frequency range to operate according to the first frequency range, so that the second antenna 20 becomes a parasitic stub of the first antenna 10, so as to prevent the second antenna 20 from interfering with the signal of the first antenna 10 and enhance the signal strength of the first antenna 10.
Illustratively, on the basis of the embodiments shown in fig. 2 to fig. 12, the mobile terminal may further include: a first control module 41 (not shown in fig. 2-12), wherein the first control module 41 is connected to the first antenna 10 and the second antenna 20, respectively.
Optionally, the first control module 41 may be connected to the first antenna switch 141 in the first antenna adjustment circuit 14 to control the first antenna switch 141 to be turned on and off, may be connected to the switch 32 to control the switch 32 to be turned on and off, and may also be connected to the first antenna switch 141 and the switch 32 to control the first antenna switch 141 and the switch 32 to be turned on and off simultaneously, which is not limited in this application.
Optionally, the first control module 41 may be connected to the second antenna switch 241 in the second antenna adjusting circuit 24 to control the second antenna switch 241 to be turned on and turned off, may be connected to the switch 32 to control the switch 32 to be turned on and turned off, and may also be connected to the second antenna switch 141 and the switch 32 to control the second antenna switch 241 and the switch 32 to be turned on and turned off simultaneously, which is not limited in this application.
The specific type and number of the first control modules 41 are not limited in this application. Optionally, in the present application, the same first control module 41 may be connected to the first antenna 10 and the second antenna 20, or a plurality of first control modules 41 may be connected to the first antenna 10 and the second antenna 20, which is not limited in the present application. In addition, the first control module 41 may be an existing processor in the mobile terminal, or may be a module added in the mobile terminal, which is not limited in this application.
In this application, the first control module 41 may control the first antenna 10 to operate in the first frequency range and control the second antenna 20 to operate in the second frequency range when the mobile terminal is in the extended state. Moreover, the first control module 41 may further control the first antenna 10 to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state, and control the second antenna 20 to switch from the second frequency range to the third frequency range to operate through the second antenna adjusting circuit 24 according to the first frequency range.
It should be noted that the first control module 41 may control the first antenna switch 141 to be turned on or turned off, and the second antenna switch 241 and/or the switch 32 to be turned on or turned off, which may refer to a description process for controlling the working frequency ranges of the first antenna 10 and the second antenna 20 when the mobile terminal is in the unfolded state and controlling the working frequency ranges of the first antenna 10 and the second antenna 20 when the mobile terminal is changed from the unfolded state to the folded state, and details are not described herein.
Illustratively, on the basis of the embodiments shown in fig. 2 to fig. 12, the communication requirement of the mobile terminal is generally related to the parameters of the current position of the mobile terminal, the signal coverage strength, and the like. The first frequency range may include a plurality of frequency ranges, as the first frequency range satisfies communication requirements of the mobile terminal. Optionally, the first frequency range includes any one of the following frequency ranges: 600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
Based on the above description, in order to meet the communication requirements of the mobile terminal, the first antenna 10 may adopt the same structure as the second antenna 20. On the basis of the embodiments shown in fig. 2-12, optionally, the first antenna 10 may include, in addition to the first antenna radiator 11 and the first feeding point 12: the first antenna conditioning circuit 14 (not shown in fig. 2-12). The first antenna adjustment circuit 14 may include various implementations, which are not limited in this application.
Optionally, the first antenna adjusting circuit 14 may include: a plurality of branches, each branch having a first antenna switch 141 and a first matching circuit 142 electrically connected thereto, the first antenna radiator 11 and any one of the branches being used to provide an operating frequency range for adjusting the first frequency range.
The specific content of the first antenna switch 141 can refer to the description of the second antenna switch 241, which is not described herein again. For specific content of the first matching circuit 142, reference may be made to the description of the second matching circuit 242, which is not described herein again.
In this embodiment, the first antenna radiator 11 may be electrically connected to the first antenna adjusting circuit 14 and the first feed B1 in sequence through the first feed point 12. Since the connection sequence between the first antenna switch 141 and the first matching circuit 142 may include multiple types, the connection sequence between the second antenna switch 241 and the second matching circuit 242 in the second antenna adjusting circuit 24 may be specifically used, and details are not repeated herein.
On the basis of the above description, optionally, the first antenna 10 may further include: a first contact point 15 (not shown in fig. 2-12) and a first ground point (not shown in fig. 2-12). The first antenna radiator 11 may also be electrically connected to the first antenna adjusting circuit 24 and the first ground point in sequence through the first contact point 15. Since the connection sequence between the first antenna switch 141 and the first matching circuit 142 may include multiple types, the connection sequence between the second antenna switch 241 and the second matching circuit 242 in the second antenna adjusting circuit 24 may be specifically used, and details are not repeated herein.
In addition, optionally, the first antenna 10 may further include: a first filter circuit 13 (not shown in fig. 2-12) for conducting signals in a first frequency range on the first antenna radiator 11.
Scene two:
in the present application, as shown in fig. 2 to 9, the first antenna 10 may include: a first antenna radiator 11 and a first feeding point 12. The first antenna radiator 11 receives an electrical signal input by the first feed B1 through the first feeding point 12, so as to implement normal operation of the first antenna 10. Wherein the present application defines the number and type of the first antenna radiators 11 and the first feeding points 12.
In the present application, as shown in fig. 2 to 9, the second antenna 20 may include: a second antenna radiator 21, a second feed point 22, a second filter circuit 23 and a second antenna adjusting circuit 24. The second antenna radiator 21 receives an electrical signal input from the second feed B2 (not shown in fig. 2-9) through the second feeding point 22 and the second filter circuit 23.
The second filter circuit 23 exhibits a high impedance characteristic in the first frequency range and the third frequency range and a low impedance characteristic in the second frequency range, that is, the second filter circuit 23 may have a blocking effect on signals in the first frequency range and the third frequency range, and the second filter circuit 23 may have a conducting effect on signals in the second frequency range.
For the specific content of the first frequency range in the scenario two, reference may be made to the description content of the first frequency range in the scenario one, where the first frequency range is a frequency range that meets the communication requirement of the mobile terminal, and details are not repeated here.
The specific content of the third frequency range in the second scene may refer to the description content of the third frequency range in the first scene, and the third frequency range is adjacent to and not completely overlapped with the first frequency range, which is not described herein again.
The second antenna radiator 21 is electrically connected to a second ground point (not shown in fig. 2-9) via a second contact point 25 (not shown in fig. 2-9) and a second antenna adjusting circuit 24. The second antenna adjusting circuit 24 exhibits a high impedance characteristic in the first frequency range, a low impedance characteristic in the second frequency range, a high impedance characteristic in the third frequency range, and a frequency adjusting function with different degrees for the third frequency range, that is, the second antenna adjusting circuit 24 can block signals in the first frequency range and the third frequency range, conduct signals in the second frequency range, and simultaneously have a frequency adjusting function with different degrees for signals in the third frequency range.
Wherein the present application defines the number and types of the second antenna radiator 21, the second feeding point 22, the second filter circuit 23, and the second antenna adjusting circuit 24.
With reference to fig. 2, 4, 6, and 8, when the mobile terminal is in the extended state, the mobile terminal of the present application may set the first antenna 10 to operate in a first frequency range, and set the second antenna 20 to operate in a second frequency range, where the first frequency range and the second frequency range are different in frequency.
As shown in fig. 2, 4, 6 and 8, when the mobile terminal is in the extended state, because the distance between the first antenna 10 and the second antenna 20 is large, when the frequency ranges in which the first antenna 10 and the second antenna 20 operate are different, there is no interference in the signals between the first antenna 10 and the second antenna 20. As shown in fig. 3, 5, 7 and 9, when the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna 10 and the second antenna 20 is reduced, but since the frequency ranges of the first antenna 10 and the second antenna 20 are different, there is no signal interference between the first antenna 10 and the second antenna 20.
In order to enhance the signal strength of the first antenna 10, in conjunction with fig. 2-9, the mobile terminal of the present application may configure the first antenna 10 to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state. Moreover, when it is determined that the operating frequency range of the first antenna 10 is the first frequency range, the mobile terminal according to the present application performs signal blocking and signal conducting through the second filter circuit 23 and performs signal blocking and signal conditioning through the second antenna adjusting circuit 24 according to the first frequency range, so that not only the second antenna 20 can be set to continue operating in the second frequency range, but also the second antenna 20 can be adjusted to operate in the third frequency range, and the third frequency range is adjacent to and not completely overlapped with the first frequency range.
In this application, when the mobile terminal is in the folded state, the first frequency range may change along with the change of the frequency range of the communication requirement of the mobile terminal, so that the first antenna 10 may satisfy various communication requirements. Since the third frequency range is derived from the first frequency range, the third frequency range changes as the first frequency range changes. And because the third frequency range is adjacent to and does not completely overlap the first frequency range, and the second antenna radiator 21, the second feeding point 22, the second filter circuit 23 and the second antenna adjustment circuit 24 in the second antenna 20 can ensure that the second antenna 20 continues to operate in the second frequency range, at the same time, the second antenna radiator 21 in the second antenna 20 may also be electrically connected to a second ground point, via a second contact point 25 and a second antenna adjusting circuit 24, to achieve a different degree of frequency adjustment of a third frequency range, therefore, the second antenna 20 can not only ensure its normal operation, but also become an adjustable parasitic branch of the first antenna 10, furthermore, the second antenna 20 can perform its own function, and simultaneously, can avoid signal interference to the first antenna 10, meanwhile, the signal of the first antenna 10 is enhanced to compensate for the influence of the folded mobile terminal.
The application provides a foldable mobile terminal, when mobile terminal is in the expansion state, can set up first antenna work at first frequency range, and second antenna work at second frequency range, and first frequency range and second frequency range are different in frequency. Because the distance between the first antenna and the second antenna is far, signals between the first antenna and the second antenna cannot interfere with each other, so that the first antenna and the second antenna can respectively complete corresponding functions, and normal communication of the mobile terminal in a unfolding state is realized. When the mobile terminal is changed from the unfolded state to the folded state, the distance between the first antenna and the second antenna is shortened, the first antenna can be set to work in a first frequency range, and according to the first frequency range, the second antenna can be set to continue to work in a second frequency range and a third frequency range through the second filter circuit and the second antenna adjusting circuit in the second antenna, and the third frequency range is adjacent to and not completely overlapped with the first frequency range. And because the second antenna radiator is electrically connected with the second grounding point through the second contact point and the second antenna adjusting circuit, the third frequency range can be adjusted to different degrees, so that the second antenna can also become an adjustable parasitic branch of the first antenna while completing the corresponding function of the second antenna, the signal strength of the first antenna is enhanced on the basis that the first antenna can meet various communication requirements, the influence caused when the mobile terminal is in a folded state is compensated, the normal communication of the mobile terminal in the folded state is completed, and the communication performance of the mobile terminal is effectively improved.
On the basis of the above embodiments, the second antenna adjusting circuit 24 may include various implementations, which are not limited in this application. Alternatively, as shown in fig. 13, the second antenna adjusting circuit 24 may include: at least one first branch (four first branches are illustrated in fig. 13), each first branch is provided with a second antenna switch 241 and a second matching circuit 242 that are electrically connected, and the second antenna radiator 21 and the second matching circuit 242 of any one of the first branches present different impedances to adjust the third frequency range.
The specific content of the second antenna switch 241 in the second scenario may refer to the description content of the second antenna switch 241 in the first scenario, which is not described herein again. For specific content of the second matching circuit 242 in the second scenario, reference may be made to the description of the second matching circuit 242 in the first scenario, and details are not repeated here.
In this application, the second antenna radiator 21 may be electrically connected to the second antenna adjusting circuit 24 and the second ground point in sequence through the second contact point 25, that is, the impedance of one branch existing in the second antenna 20 is 0 ohm, so that the second antenna 20 may operate in the second frequency range when the mobile terminal is in the extended state, and due to the existence of the second filter circuit 23, the second antenna 20 may conduct the signal in the second frequency range when the mobile terminal is in the extended state.
For convenience of illustration, in fig. 13, the second antenna radiator 21 may be electrically connected to the second matching circuit 242, the second antenna switch 241, and the second feed B2 in sequence through the second contact point 25, and two branches where the second matching circuit 242 and the second antenna switch 241 are located are exemplarily illustrated.
Since the connection sequence of the second antenna switch 241 and the second matching circuit 242 may include a plurality of types, a specific connection relationship of the second antenna adjusting circuit 24 in this application will be described below with a plurality of possible connection manners.
In one possible connection, the second antenna radiator 21 may be electrically connected to the second antenna switch 241, the second matching circuit 242 and the second ground point in sequence through the second contact point 25.
In another possible connection, the second antenna radiator 21 may be electrically connected to the second matching circuit 242, the second antenna switch 241 and the second ground point in sequence through the second contact point 25, as shown in fig. 13. For convenience of illustration, fig. 13 is schematically illustrated with such a connection.
In another possible connection, the two connection modes can exist at the same time.
Based on the above description, as shown in fig. 13, the second antenna radiator 21 may further be electrically connected to the second adjusting circuit 24 and the second feed B2 in sequence through the second feeding point 22 and the second filter circuit 23.
Here, the connection sequence between the second antenna switch 241 and the second matching circuit 242 in the second antenna adjusting circuit 24 is not limited in the present application. For convenience of illustration, in fig. 13, the second antenna radiator 21 may be electrically connected to the second matching circuit 242, the second antenna switch 241, and the second feed B2 in sequence through the second feeding point 22 and the second filter circuit 23, and two branches are exemplarily illustrated where the second matching circuit 242 and the second antenna switch 241 are located.
Based on the connection relationship of the second antenna adjusting circuit 24, referring to fig. 13, optionally, when the mobile terminal is in the extended state, if the second antenna 20 operates in the second frequency range, and the mobile terminal is changed from the extended state to the folded state, the remaining second antenna switches 241 in the second antenna adjusting circuit 24 may be opened by closing the second antenna switches 241 electrically connected to the second matching circuit 242 providing the third frequency range, and the second antenna is set to operate in the second frequency range and the third frequency range according to the first frequency range, so that the second antenna 20 may also become a parasitic branch of the first antenna 10 while operating normally, so as to enhance the signal strength of the first antenna 10.
It should be noted that, one or more of the second matching circuits 242 providing the third frequency range mentioned above may be provided, and the application is not limited thereto. Correspondingly, the above-mentioned second antenna switches 241 electrically connected to the second matching circuits 242 providing the third frequency range are all the second antenna switches 241 electrically connected to one or more second matching circuits 242.
On the basis of the embodiment shown in fig. 13, in conjunction with fig. 14, the second antenna adjusting circuit 24 may further include: at least one second branch (schematically illustrated as a second branch in fig. 14), each second branch is provided with a second matching circuit 242, and the second antenna radiator 21 and the second matching circuit 242 of any one of the second branches have different impedances to adjust the third frequency range.
In this application, the second antenna radiator 21 may be sequentially electrically connected to the second antenna adjusting circuit 24 and the second ground point through the second contact point 25, and may also be sequentially electrically connected to the second matching circuit 242 and the second ground point through the second contact point 25, that is, there is no impedance on one branch in the second antenna 20 of 0 ohm, so that the second antenna 20 may operate in the second frequency range and the fourth frequency range when the mobile terminal is in the extended state, and it is due to the existence of the second filter circuit 23, so that the second antenna 20 may conduct the signal in the second frequency range and block the signal in the fourth frequency range when the mobile terminal is in the extended state.
Based on the connection relationship of the second antenna adjusting circuit 24, referring to fig. 14, optionally, when the mobile terminal is in the extended state, if the second antenna 20 operates in the second frequency range and the fourth frequency range, and the mobile terminal is changed from the extended state to the folded state, the second antenna switch 241 electrically connected to the second matching circuit 242 providing the third frequency range may be closed, the remaining second antenna switches 241 in the second antenna adjusting circuit 24 are opened, and the fourth frequency range to the third frequency range are adjusted according to the first frequency range, so as to set the second antenna to operate in the second frequency range and the third frequency range, so that the second antenna 20 may also become a parasitic branch of the first antenna 10 while operating normally, so as to enhance the signal strength of the first antenna 10.
In general, when the first frequency range is greater than the fourth frequency range, the mobile terminal may adjust the second matching circuit 242 in the second antenna adjusting circuit 24 to exhibit the inductance. When the first frequency range is smaller than the fourth frequency range, the mobile terminal may adjust the second matching circuit 242 in the second antenna adjusting circuit 24 to exhibit the capacitive property.
For example, on the basis of the embodiments shown in fig. 2 to 9 and fig. 13 to 14, the mobile terminal may further include: a second control module 42 (not shown in fig. 2-9, 13-14), wherein the second control module 42 is connected to the first antenna 10 and the second antenna 20, respectively.
The second control module 42 may be connected to the first antenna switch 141 in the first antenna adjusting circuit 14 to control the on and off of the first antenna switch 141, and may also be connected to the second antenna switch 241 in the second antenna adjusting circuit 24 to control the on and off of the second antenna switch 241.
The specific type and number of the second control modules 42 are not limited in this application. Optionally, in the present application, the same second control module 42 may be respectively connected to the first antenna 10 and the second antenna 20, or a plurality of second control modules 42 may be respectively connected to the first antenna 10 and the second antenna 20, which is not limited in this application. In addition, the second control module 42 may be an existing processor in the mobile terminal, or may be a module added to the mobile terminal, which is not limited in this application.
In this application, the second control module 42 may control the first antenna 10 to operate in the first frequency range and control the second antenna 20 to operate in the second frequency range when the mobile terminal is in the extended state. Moreover, the second control module 42 may further control the first antenna 10 to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state, and control the second antenna 20 to operate in the second frequency range and the third frequency range through the second filter circuit 23 and the second antenna adjusting circuit 24 according to the first frequency range.
It should be noted that the second control module 42 may implement the above-mentioned process by controlling the first antenna switch 141 and the second antenna switch 241 to be turned on or turned off, and specific contents may refer to a description process for controlling the working frequency ranges of the first antenna 10 and the second antenna 20 when the mobile terminal is in the unfolded state and controlling the working frequency ranges of the first antenna 10 and the second antenna 20 when the mobile terminal is changed from the unfolded state to the folded state, which is not described herein again.
Illustratively, on the basis of the embodiments shown in fig. 2-9 and fig. 13-14, the communication requirement of the mobile terminal is generally related to the current location of the mobile terminal, the signal coverage strength, and other parameters. The first frequency range may include a plurality of frequency ranges, as the first frequency range satisfies communication requirements of the mobile terminal. Optionally, the first frequency range includes any one of the following frequency ranges: 600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
Based on the above description, in order to meet the communication requirements of the mobile terminal, the first antenna 10 may adopt the same structure as the second antenna 20. On the basis of the embodiments shown in fig. 2 to 9 and 13 to 14, the first antenna 10 may optionally include, in addition to the first antenna radiator 11 and the first feeding point 12: the first antenna conditioning circuit 14 (not shown in fig. 2-9, 13-14). The first antenna adjustment circuit 14 may include various implementations, which are not limited in this application.
Optionally, the first antenna adjusting circuit 14 may include: a plurality of branches, each branch having a first antenna switch 141 and a first matching circuit 142 electrically connected thereto, the first antenna radiator 11 and any one of the branches being used to provide an operating frequency range for adjusting the first frequency range.
The specific content of the first antenna switch 141 can refer to the description of the second antenna switch 241, which is not described herein again. For specific content of the first matching circuit 142, reference may be made to the description of the second matching circuit 242, which is not described herein again.
In this embodiment, the first antenna radiator 11 may be electrically connected to the first antenna adjusting circuit 14 and the first feed B1 in sequence through the first feed point 12. Since the connection sequence between the first antenna switch 141 and the first matching circuit 142 may include multiple types, the connection sequence between the second antenna switch 241 and the second matching circuit 242 in the second antenna adjusting circuit 24 may be specifically used, and details are not repeated herein.
On the basis of the above description, optionally, the first antenna 10 may further include: a first contact point 15 (not shown in fig. 2-9, 13-14) and a first ground point (not shown in fig. 2-9, 13-14). The first antenna radiator 11 may also be electrically connected to the first antenna adjusting circuit 24 and the first ground point in sequence through the first contact point 15. Since the connection sequence between the first antenna switch 141 and the first matching circuit 142 may include multiple types, the connection sequence between the second antenna switch 241 and the second matching circuit 242 in the second antenna adjusting circuit 24 may be specifically used, and details are not repeated herein.
In addition, optionally, the first antenna 10 may further include: a first filter circuit 13 (not shown in fig. 2-9, 13-14) for conducting signals in a first frequency range on the first antenna radiator 11.
In a specific embodiment, in the mobile terminal shown in fig. 2-3, the first antenna 10 is set as the main antenna of the mobile terminal and the second antenna 20 is set as the auxiliary antenna of the mobile terminal. In addition, in both the first scenario and the second scenario, with reference to fig. 15-17, when the mobile terminal is in the folded state, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are explained and analyzed from the two cases that the second antenna 20 does not become a parasitic branch of the first antenna 10 and the second antenna 20 becomes a parasitic branch of the first antenna 10.
The reflection coefficient S11 is one of S parameters (i.e., scattering parameters) and represents return loss characteristics, and the dB value of the loss and impedance characteristics are generally observed by a network analyzer. The parameter indicates that the matching degree of the antenna and the front-end circuit is not good, and the larger the value of the reflection coefficient S11 is, the larger the energy reflected by the antenna is, so that the matching of the antenna is worse. For example, the S11 value of antenna a at a certain frequency point is-1, the S11 value of antenna B at the same frequency point is-3, and antenna B has better matching degree than antenna a.
Fig. 15 shows a graph illustrating the reflection coefficient S11 of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 15, the abscissa represents frequency (frequency) in GHz, and the ordinate represents reflection coefficient S11 in dBa. The solid line "1" represents a curve of the reflection coefficient S11 corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the reflection coefficient S11 corresponding to the second antenna 20 when it is two types of parasitic branches of different lengths of the first antenna 10.
In fig. 15, a parasitic coupling region, also called a magnetic coupling parasitic, is used as a current strong point. Taking solid line "2" in fig. 15 as an example, the resonance at the 680MHz frequency point is a parasitic resonance, the resonance at the 930MHz frequency point falls within the resonance range of the main antenna body, and the main resonance is shifted to a higher frequency and is deeper due to the influence of the parasitic resonance than the solid line "1".
Fig. 16 is a graph illustrating the radiation efficiency of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 16, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of the radiation efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the radiation efficiency corresponding to the second antenna 20 when it is two types of parasitic branches of different lengths of the first antenna 10.
As can be seen from any one of the solid lines "2-3" shown in FIG. 16, the parasitic resonance increases the radiation efficiency of the main resonance in the frequency range of 0.85-0.95 GHz by about 1.4dB (the amount of the increase in the radiation efficiency is usually related to the environment).
Fig. 17 shows a graph illustrating the system efficiency of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 17, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of the system efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the system efficiency corresponding to the second antenna 20 when it is two parasitic branches of different lengths of the first antenna 10.
As can be seen from any one of the solid lines "2-3" shown in FIG. 17, the parasitic resonance can improve the system efficiency of the main resonance in the frequency range of 0.85-0.9 GHz, which is about 2-3 dB of system efficiency improvement.
Based on the above description process, when the mobile terminal is in the folded state, compared with the case that the second antenna 20 does not become the parasitic branch of the second antenna 20, in the case that the second antenna 20 becomes the parasitic branch of the second antenna 20, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are all improved, the signal strength of the first antenna 10 is enhanced, and the communication performance of the first antenna 10 is improved.
In another specific embodiment, in the mobile terminal shown in fig. 4 and 5, the first antenna 10 is set as a main antenna of the mobile terminal, and the second antenna 20 is set as a secondary antenna of the mobile terminal. In addition, in both the first scenario and the second scenario, with reference to fig. 18 to 20, when the mobile terminal is in the folded state, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are explained and analyzed from the two cases that the second antenna 20 does not become a parasitic branch of the first antenna 10 and the second antenna 20 becomes a parasitic branch of the first antenna 10.
Fig. 18 shows a graph illustrating the reflection coefficient S11 of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 18, the abscissa represents frequency (frequency) in GHz, and the ordinate represents reflection coefficient S11 in dBa. The solid line "1" represents a curve of the S parameter corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the reflection coefficient S11 corresponding to the second antenna 20 when it is two types of parasitic branches of different lengths of the first antenna 10.
Unlike the previous embodiment, the parasitic coupling region is an electric field intensity point, also called electric field coupling parasitic, in fig. 18. In fig. 18, the parasitic resonance is at a high frequency in the frequency range of 0.85 to 0.9GHz of the main resonance, as indicated by the frequency point of 1GHz in fig. 18. That is, the resonant frequency of the parasitic branch in fig. 15 is smaller than the resonant frequency of the main antenna, and the resonant frequency of the parasitic branch in fig. 18 is larger than the resonant frequency of the main antenna.
Fig. 19 is a graph illustrating the radiation efficiency and the system efficiency of the second antenna 20 when it is not a parasitic branch of the first antenna 10 and when it is a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 19, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of the radiation efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the radiation efficiency corresponding to the second antenna 20 when it is two types of parasitic branches of different lengths of the first antenna 10.
As shown in fig. 19, the parasitic resonance will increase the radiation efficiency of the main resonance in a certain frequency range, which is about 1.7-2 dB.
Fig. 20 shows a graphical representation of the system efficiency of the second antenna 20 when not becoming a parasitic stub of the first antenna 10 and when becoming a parasitic stub of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 20, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of the system efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the system efficiency corresponding to the second antenna 20 when it is two parasitic branches of different lengths of the first antenna 10.
As shown in fig. 20, the parasitic resonance will increase the system efficiency of the main resonance over a range of frequencies, approximately 2dB of system efficiency increase.
Based on the above description process, when the mobile terminal is in the folded state, compared with the case that the second antenna 20 does not become the parasitic branch of the main antenna, in the case that the second antenna 20 becomes the parasitic branch of the first antenna 10, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are all improved, the signal lightness of the first antenna 10 is enhanced, and the communication performance of the first antenna 10 is improved.
In another specific embodiment, in the mobile terminal shown in fig. 8 and 9, the first antenna 10 is set as a main antenna of the mobile terminal, and the second antenna 20 is set as a sub-antenna of the mobile terminal. In addition, in both the first scenario and the second scenario, with reference to fig. 21 to 23, when the mobile terminal is in the folded state, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are explained and analyzed from the two cases that the second antenna 20 does not become a parasitic branch of the first antenna 10 and the second antenna 20 becomes a parasitic branch of the first antenna 10.
Fig. 21 shows a graph illustrating the reflection coefficient S11 of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 21, the abscissa represents frequency (frequency) in GHz, and the ordinate represents reflection coefficient S11 in dBa. The solid line "1" represents a curve of the S parameter corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid lines "2 to 3" represent curves of the reflection coefficient S11 corresponding to the second antenna 20 when it is two types of parasitic branches of different lengths of the first antenna 10.
In fig. 21, the target resonance frequency range of the main antenna is set to be 1.7 to 1.88GHz, the solid line "2" is taken as an example, the resonance at the frequency point of 1.7 to 1.88GHz is parasitic resonance, and the main resonance is affected by the parasitic resonance more deeply than the solid line "1".
Fig. 22 is a graph illustrating the radiation efficiency of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 22, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of radiation efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid line "2" represents a curve of radiation efficiency corresponding to the second antenna 20 when it is a parasitic branch of two different lengths of the first antenna 10.
As shown in fig. 22, the target resonant frequency range of the main antenna is 1.7-1.88 GHz, and the parasitic resonance will improve the radiation efficiency of the main resonance in the frequency range. In addition, when the working frequency band of the main antenna is switched and changed, the parasitic resonance can follow the switching of the working frequency band, so that the radiation frequency of the main antenna can be improved in the target frequency range.
Fig. 23 shows a graph illustrating the system efficiency of the second antenna 20 when not becoming a parasitic branch of the first antenna 10 and when becoming a parasitic branch of the first antenna 10, respectively, when the mobile terminal is in the folded state.
In fig. 23, the abscissa represents frequency (frequency) in GHz, and the ordinate represents efficiency (efficiency) in dBp. The solid line "1" represents a curve of the system efficiency corresponding to the second antenna 20 when it is not a parasitic branch of the first antenna 10, and the solid line "2" represents a curve of the system efficiency corresponding to the second antenna 20 when it is a parasitic branch of two different lengths of the first antenna 10.
As shown in FIG. 23, the resonant frequency of the main antenna is in the range of 1.7-1.88 GHz, and the parasitic resonance will improve the system efficiency of the main antenna in this frequency range. In addition, when the working frequency band of the main antenna is switched and changed, the parasitic resonance can follow the switching of the working frequency band, so that the system frequency of the main antenna can be still improved in the target frequency range.
Based on the above description process, when the mobile terminal is in the folded state, compared with the case that the second antenna 20 does not become the parasitic branch of the main antenna, in the case that the second antenna 20 becomes the parasitic branch of the first antenna 10, the reflection coefficient S11, the radiation efficiency, and the system efficiency of the second antenna 20 are all improved, the signal lightness of the first antenna 10 is enhanced, and the communication performance of the first antenna 10 is improved.
In addition, based on the above three specific embodiments, in the present application, the first antenna 10 may include not only one antenna radiator, but also a parasitic branch and an antenna radiator, and the second antenna 20 may utilize one or more antenna radiators at any position in the mobile terminal, so that the one or more antenna radiators become the parasitic branch of the first antenna 10, no matter whether the frequency range of the first antenna 10, which operates when the mobile terminal is changed from the unfolded state to the folded state, is in any frequency range of low, medium and high frequencies.
Illustratively, the application also provides an antenna control method. Fig. 24 is a flowchart illustrating an antenna control method according to an embodiment of the present application, where the antenna control method of the present application can be implemented by the control module in the mobile terminal shown in fig. 1a to 23 through software and/or hardware. As shown in fig. 24, the antenna control method of the present application may include:
s101, acquiring the opening and closing state of the mobile terminal.
In the application, when the mobile terminal is in different open-close states, the working frequency ranges of the first antenna and the second antenna are different, so that the mobile terminal needs to acquire the open-close state of the mobile terminal. Thus, when the mobile terminal is in the unfolded state, step S102 is executed; when the mobile terminal is in the folded state, step S103 is executed.
The method and the device can determine the opening and closing state of the mobile terminal in various modes. Next, two specific implementation manners are adopted to describe in detail a specific process of acquiring the open/close state of the mobile terminal in S101.
In a feasible implementation, the opening and closing angle of the rotating shaft is obtained. For example, when the opening and closing angle satisfies the preset angle, it is determined that the mobile terminal is in the folded state. And when the opening and closing angle does not meet the preset angle, determining that the mobile terminal is in the unfolding state. The preset angle may be set according to actual conditions, such as greater than or equal to 60 °.
In another possible implementation, the distance between two housings of the mobile terminal is obtained. For example, when the distance satisfies a preset threshold, it is determined that the mobile terminal is in a folded state. And when the distance does not meet the preset threshold value, determining that the mobile terminal is in the unfolding state. The preset threshold value can be set according to actual conditions, such as less than or equal to half of the length of any one shell.
It should be noted that the present application is not limited to the above method for determining the open/close state of the mobile terminal.
S102, controlling the first antenna to work in a first frequency range, wherein the first frequency range is a frequency range meeting the communication requirement of the mobile terminal, and controlling the second antenna to work in a second frequency range, and the first frequency range and the second frequency range have the same frequency, or the first frequency range and the second frequency range have different frequencies.
In the application, when the mobile terminal determines that the mobile terminal is in the extended state, according to an actual communication situation, the frequency ranges of the first antenna and the second antenna can be controlled to be the same frequency, and the frequency ranges of the first antenna and the second antenna can also be controlled to be different frequencies.
The same frequency and different frequencies can refer to the description contents of fig. 1a to fig. 1e, and are not described herein.
S103, judging whether the working frequency ranges of the first antenna and the second antenna are the same frequency or not when the mobile terminal is in the unfolding state.
In the application, whether the working frequency ranges of the first antenna and the second antenna are the same frequency or not when the mobile terminal is in the unfolded state can affect the working frequency ranges of the first antenna and the second antenna when the mobile terminal is in the folded state. Therefore, when the mobile terminal is determined to be in the folded state, the mobile terminal can determine whether the working frequency ranges of the first antenna and the second antenna are the same frequency when the mobile terminal is in the unfolded state.
Thus, when the first antenna and the second frequency range have the same frequency, S104 is executed; when the first antenna and the second frequency range are different in frequency, S105 is performed.
And S104, controlling the first antenna to work in a first frequency range, and controlling the second antenna to switch from a second frequency range to a third frequency range to work through a second antenna adjusting circuit according to the first frequency range, wherein the third frequency range is adjacent to and not completely overlapped with the first frequency range.
In the application, when the first antenna and the second frequency range are in the same frequency, the mobile terminal can control the working frequency range of the second antenna to be adjacent to and not completely overlapped with the working frequency range of the first antenna, so that the second antenna is switched into a parasitic branch of the first antenna.
Optionally, the third frequency range is adjacent to and does not overlap with the first frequency range, or the third frequency range partially overlaps with the first frequency range.
And S105, controlling the first antenna to work in a first frequency range, and controlling the second antenna to work in a second frequency range and a third frequency range through the second antenna adjusting circuit according to the first frequency range, wherein the third frequency range is adjacent to and not completely overlapped with the first frequency range.
In the application, the mobile terminal can ensure that the second antenna works normally when the first antenna and the second antenna are different in frequency range, and meanwhile, the frequency range of the second antenna working can be controlled to be adjacent to and not completely overlapped with the frequency range of the first antenna working, so that the second antenna can work normally and complete corresponding functions, and meanwhile, the second antenna can be switched into a parasitic branch of the first antenna.
The setting process of the first frequency range may refer to the above-mentioned description of the present application, and is not described herein again.
The antenna control method provided by the present application may implement the embodiment of the mobile terminal, and the specific implementation principle and technical effect thereof may refer to the technical solutions of the embodiments shown in fig. 1a to fig. 23, which are not described herein again.
Fig. 25 is a schematic diagram of a hardware structure of the electronic device provided in an embodiment of the present application, and as shown in fig. 25, the electronic device 100 is configured to implement operation of a control module in a mobile terminal through software and/or hardware in any of the above method embodiments, where the mobile terminal includes but is not limited to a terminal such as a smart phone, a tablet computer, a handheld computer, a router, an optical network device (ONT), and a wireless Access Point (AP). The electronic device 100 of the embodiment of the application may include: a memory 101 and a processor 102. The memory 101 and the processor 102 may be connected by a bus 103.
A memory 101 for storing program codes;
the processor 102 invokes program code, which when executed, is configured to perform the antenna control method in any of the above embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Optionally, the embodiment of the present application further includes a communication interface 104, and the communication interface 104 may be connected to the processor 102 through the bus 103. The processor 102 may control the communication interface 103 to implement the above-described receiving and transmitting functions of the electronic device 100.
The electronic device of the present application may be configured to execute the technical solutions in the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the modules is only one logical division, and the actual implementation may have another division, for example, a plurality of modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.
In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The application also provides a readable storage medium, in which execution instructions are stored, and when at least one processor of the electronic device executes the execution instructions, the electronic device executes the antenna control method in the above method embodiment.
The present application further provides a chip, where the chip is connected to a memory, or a memory is integrated on the chip, and when a software program stored in the memory is executed, the antenna control method in the above method embodiment is implemented.
The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the electronic device may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the electronic device to implement the antenna control method in the above-described method embodiment.
Those of ordinary skill in the art will understand that: in the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims (24)

1. A foldable mobile terminal, comprising: the first antenna and the second antenna are arranged on two sides of the rotating axis;
the first antenna includes: the antenna comprises a first antenna radiator and a first feed point, wherein the first antenna radiator receives an electric signal input by a first feed source through the first feed point;
the second antenna includes: the second antenna radiator receives an electric signal input by a second feed source through the second feed point, and the second antenna radiator, the second feed point and the second antenna regulating circuit are used for providing a plurality of working frequency ranges;
when the mobile terminal is in an unfolded state, the first antenna works in a first frequency range, the second antenna works in a second frequency range, the first frequency range and the second frequency range have the same frequency, and the first frequency range is a frequency range meeting the communication requirement of the mobile terminal;
when the mobile terminal is changed from an unfolded state to a folded state, the first antenna works in the first frequency range; according to the first frequency range, the second antenna is switched to a third frequency range through the second antenna adjusting circuit to work, and the third frequency range is adjacent to and not completely overlapped with the first frequency range.
2. The mobile terminal of claim 1,
the third frequency range is adjacent to and does not overlap with the first frequency range, or the third frequency range partially overlaps with the first frequency range.
3. The mobile terminal of claim 1 or 2, wherein the second antenna adjustment circuit comprises: the antenna comprises a plurality of branches, wherein each branch is provided with a second antenna switch and a second matching circuit which are electrically connected, and the second antenna radiator and any one branch are used for providing a working frequency range to adjust the third frequency range;
the second antenna radiator is electrically connected with the second antenna switch, the second matching circuit and the second feed source in sequence through the second feed point; and/or the presence of a gas in the gas,
the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second feed source in sequence through the second feed point.
4. The mobile terminal of claim 3, wherein the second antenna radiator is electrically connected to the second antenna switch, the second matching circuit, and a second ground point in sequence via a second contact point; and/or the presence of a gas in the gas,
the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second grounding point in sequence through a second contact point.
5. The mobile terminal according to claim 3 or 4,
when the mobile terminal is changed from the unfolded state to the folded state, the second antenna is switched to the third frequency range from the second frequency range to work by disconnecting the second antenna switch in the branch where the second antenna radiator is electrically connected with the second feed source according to the first frequency range.
6. The mobile terminal of claim 5,
when the mobile terminal is changed from the unfolded state to the folded state, according to the first frequency range, the second antenna is switched from the second frequency range to the third frequency range to work by opening the second antenna switch in the branch where the second antenna radiator is electrically connected with the second feed source and closing the second antenna switch electrically connected with the second matching circuit providing the third frequency range.
7. The mobile terminal according to any of claims 1-6, wherein the mobile terminal further comprises: a radio frequency circuit and a switch;
and the first end of the change-over switch is connected with the radio frequency circuit, and the second end of the change-over switch is connected with the second feed source.
8. The mobile terminal of claim 7,
when the mobile terminal is changed from the unfolded state to the folded state, the connection between the second feed source and the radio frequency circuit is disconnected by disconnecting the change-over switch according to the first frequency range, and the second antenna is switched to the third frequency range from the second frequency range to work.
9. The mobile terminal of any of claims 1-8, wherein the first antenna further comprises: a first antenna adjustment circuit; the first antenna adjustment circuit includes: the antenna comprises a plurality of branches, a first antenna switch and a first matching circuit which are electrically connected are arranged on each branch, and the first antenna radiator and any one branch are used for providing a working frequency range to adjust the first frequency range;
wherein the first antenna radiator is electrically connected to the first antenna adjusting circuit and the first feed source in sequence through the first feed point.
10. A mobile terminal according to any of claims 1-9, wherein the first frequency range comprises any of the following frequency ranges:
600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
11. The mobile terminal according to any of claims 1-10, wherein the mobile terminal further comprises: a first control module;
the first control module is respectively connected with the first antenna and the second antenna;
the first control module is configured to control the first antenna to operate in the first frequency range and the second antenna to operate in the second frequency range when the mobile terminal is in a deployed state;
the first control module is further configured to control the first antenna to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state; and controlling the second antenna to switch from the second frequency range to a third frequency range to work through the second antenna adjusting circuit according to the first frequency range.
12. A foldable mobile terminal, comprising: the first antenna and the second antenna are arranged on two sides of the rotating axis;
the first antenna includes: the antenna comprises a first antenna radiator and a first feed point, wherein the first antenna radiator receives an electric signal input by a first feed source through the first feed point;
the second antenna includes: the second antenna radiator receives an electric signal input by a second feed source through the second feed point and the second filter circuit, the second filter circuit presents a high impedance characteristic in a first frequency range and a third frequency range and presents a low impedance characteristic in the second frequency range, the first frequency range is a frequency range meeting the communication requirement of the mobile terminal, and the third frequency range is adjacent to and not completely overlapped with the first frequency range; the second antenna radiator is electrically connected with a second grounding point through a second contact point and the second antenna adjusting circuit, and the second antenna adjusting circuit presents high impedance characteristic in the first frequency range, low impedance characteristic in the second frequency range, high impedance characteristic in the third frequency range and frequency adjusting function with different degrees on the third frequency range;
when the mobile terminal is in an unfolded state, the first antenna works in the first frequency range, the second antenna works in the second frequency range, and the first frequency range and the second frequency range are different in frequency;
when the mobile terminal is changed from an unfolded state to a folded state, the first antenna works in the first frequency range; and according to the first frequency range, the second antenna works in the second frequency range and the third frequency range through the second filter circuit and the second antenna adjusting circuit.
13. The mobile terminal of claim 12,
the third frequency range is adjacent to and does not overlap with the first frequency range, or the third frequency range partially overlaps with the first frequency range.
14. The mobile terminal of claim 12 or 13, wherein the second antenna adjustment circuit comprises: each first branch is provided with a second antenna switch and a second matching circuit which are electrically connected, and the second antenna radiator and the second matching circuit of any one first branch present different impedances to adjust the third frequency range;
the second antenna radiator is electrically connected with the second antenna switch, the second matching circuit and the second grounding point in sequence through the second contact point; and/or the presence of a gas in the gas,
the second antenna radiator is electrically connected with the second matching circuit, the second antenna switch and the second grounding point in sequence through the second contact point.
15. The mobile terminal of claim 14, wherein when the second antenna operates in the second frequency range when the mobile terminal is in a deployed state,
when the mobile terminal is changed from the unfolded state to the folded state, according to the first frequency range, a second antenna switch electrically connected with a second matching circuit providing the third frequency range is closed, and the second antenna works in the second frequency range and the third frequency range.
16. The mobile terminal of claim 14, wherein the second antenna adjustment circuit further comprises: each second branch is provided with the second matching circuit, and the second antenna radiator and the second matching circuit of any one second branch present different impedances to adjust the third frequency range;
and the second antenna radiator is electrically connected with the second matching circuit and the second grounding point in sequence through the second contact point.
17. The mobile terminal of claim 16, wherein when the second antenna operates in the second frequency range and a fourth frequency range when the mobile terminal is in a deployed state,
when the mobile terminal is changed from the unfolded state to the folded state, the second antenna switch electrically connected with the second matching circuit providing the third frequency range is closed according to the first frequency range and the fourth frequency range so as to adjust the fourth frequency range to the third frequency range, and the second antenna works in the second frequency range and the third frequency range.
18. The mobile terminal of any of claims 12-17, wherein the first antenna further comprises: a first antenna adjustment circuit; the first antenna adjustment circuit includes: the antenna comprises a plurality of branches, a first antenna switch and a first matching circuit which are electrically connected are arranged on each branch, and the first antenna radiator and any one branch are used for providing a working frequency range to adjust the first frequency range;
wherein the first antenna radiator is electrically connected to the first antenna adjusting circuit and the first feed source in sequence through the first feed point.
19. A mobile terminal according to any of claims 12-18, characterized in that the first frequency range comprises any of the following frequency ranges:
600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
20. The mobile terminal according to any of claims 12-19, wherein the mobile terminal further comprises: a second control module;
the second control module is respectively connected with the first antenna and the second antenna;
the second control module is configured to control the first antenna to operate in the first frequency range and control the second antenna to operate in the second frequency range when the mobile terminal is in a deployed state;
the second control module is further configured to control the first antenna to operate in the first frequency range when the mobile terminal is changed from the unfolded state to the folded state; and controlling the second antenna to work in the second frequency range and the third frequency range through the second filter circuit and the second antenna adjusting circuit according to the first frequency range.
21. An antenna control method applied to a foldable mobile terminal, the mobile terminal comprising: the first antenna and the second antenna are arranged on two sides of the rotating axis;
the method comprises the following steps:
acquiring the opening and closing state of the mobile terminal;
when the mobile terminal is in a deployed state, controlling the first antenna to work in a first frequency range, wherein the first frequency range is a frequency range meeting the communication requirement of the mobile terminal, and controlling the second antenna to work in a second frequency range, wherein the first frequency range and the second frequency range have the same frequency, or the first frequency range and the second frequency range have different frequencies;
when the mobile terminal is in a folded state and the frequency ranges of the first antenna and the second antenna working when the mobile terminal is in an unfolded state are determined to be the same frequency, controlling the first antenna to work in the first frequency range; according to the first frequency range, the second antenna is controlled to be switched to a third frequency range from the second frequency range to work through the second antenna adjusting circuit, and the third frequency range is adjacent to and not completely overlapped with the first frequency range;
when the mobile terminal is in a folded state and the working frequency ranges of the first antenna and the second antenna are different when the mobile terminal is determined to be in an unfolded state, controlling the first antenna to work in the first frequency range; and controlling the second antenna to work in the second frequency range and a third frequency range by the second antenna adjusting circuit according to the first frequency range, wherein the third frequency range is adjacent to and not completely overlapped with the first frequency range.
22. The method of claim 21,
the third frequency range is adjacent to and does not overlap with the first frequency range, or the third frequency range partially overlaps with the first frequency range.
23. The method according to claim 21 or 22, wherein the first frequency range comprises any one of the following frequency ranges:
600-960 MHz low frequency band, 1710-2200 MHz middle frequency band and 2300-2700 MHz high frequency band.
24. The method according to any of claims 21-23, wherein the obtaining the open/close state of the mobile terminal comprises:
acquiring the opening and closing angle of the rotating shaft; alternatively, the first and second electrodes may be,
the distance between two shells of the mobile terminal is acquired.
CN201910579187.8A 2019-06-28 2019-06-28 Foldable mobile terminal and antenna control method Pending CN112151960A (en)

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PCT/CN2020/098395 WO2020259663A1 (en) 2019-06-28 2020-06-28 Foldable mobile terminal and antenna control method

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